12178954775 has 12 divisors (see below), whose sum is σ = 16263589272. Its totient is φ = 8993689440.

The previous prime is 12178954727. The next prime is 12178954807. The reversal of 12178954775 is 57745987121.

It is not a de Polignac number, because 12178954775 - 2⁸ = 12178954519 is a prime.

It is a super-2 number, since 2×12178954775² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12178954775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18736529 + ... + 18737178.

It is an arithmetic number, because the mean of its divisors is an integer number (1355299106).

Almost surely, 2^12178954775 is an apocalyptic number.

12178954775 is a deficient number, since it is larger than the sum of its proper divisors (4084634497).

12178954775 is a wasteful number, since it uses less digits than its factorization.

12178954775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37473730 (or 37473725 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 56.

The spelling of 12178954775 in words is "twelve billion, one hundred seventy-eight million, nine hundred fifty-four thousand, seven hundred seventy-five".